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Industrial Products | Hydraulic HoseHose Assembly Installation

Satisfactory performance and appearance depends upon proper hose installation. Excessive length destroys the trim appearance of an installation and adds unnecessary costs to the equipment. Hose assemblies of insufficient length to permit adequate flexing,expansion or contraction will cause poor power transmission and shorten the life of the hose.The diagrams below offer suggestions for proper hose installations to obtain the maximum performance and economy.

  1. Where the radius falls below the required minimum, an angle adapter should be used as shown above to avoid sharp bends in hose.
  1. Avoid sharp twists or bends in the hose by using proper angle adapters.
  1. To prevent twisting and distortion, hoses should be bent in the same plane as the motion of the base to which the hose is connected.
  1. Obtain direct routing of hose through the use of 45° and 90° adapters and couplings. Improve appearance by avoiding excessive hose length.
  1. Even if there are changes in length when the hose is pressurized, do not clamp at bends, so that curves absorb changes. Do not clamp high and low pressure lines together.(If piping design cannot be changed, protect hoses with hose guards instead of clamping)
  1. Adequate hose length is most important to distribute movement on flexing applications and to avoid abrasion and excess bending.
  1. Since hose may change in length from -4% to +2% under the surge of high pressure, provide sufficient slack for expansion and contraction.
  1. To avoid twisting in hose lines bent in three planes, clamp hose to move in one plane.
  1. Decrease the number of tubes and accessories as practically as possible and use proper adapters so that the overall length will be minimized with a good appearance brought forth.
  1. The lay line provided on the hose cover will be used as a reference line to examine whether or not the installed hose is twisted. Also be sure to tighten the union nut coupling with a spanner applied to the hexagon part in order to avoid the twist.